Wankers mate, get a post up in General Discussion to get some attention to it. And post on
www.seriesoneturbo.co.uk as well.
Post up with pictures of the inside and outside and the reg so people can clock it if it has had the plates removed.
Sickner, most likely taken for parts, but if you are lucky, someone may have just bought an id of ebay so they car may stay in tacked giving you a chance to spot it.
The more places you post, the more chance of getting ti spotted.